SDR 98ZZZX1277

Service difficulty report · Spring · Boeing 737*

Difficulty date
March 6, 1998
Submitted
March 26, 2000
Operation
General aviation
Filed by
IU6R626N
Aero Controls, LLC
Make and model
Boeing 737*
Part
Spring
Part number
69778551
Condition
Broken
Location
Stab Trim Grbox
Part time
17,774 hours
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

STABILIZER TRIM GEARBOX SPRINGS P/N 69-77855-1 ARE BROKEN. SUSPECT IMPROPER HEAT TREAT OR INCORRECT ALLOY. SUBMITTER RECOMMENDATIONS: SPRINGS P/N 69-77855-1 SHOULD BE REPLACED WITH P/N 69-77855-2 SPRINGS.